mirror of https://github.com/acidanthera/audk.git
47 lines
1.8 KiB
ArmAsm
47 lines
1.8 KiB
ArmAsm
#------------------------------------------------------------------------------
|
|
#
|
|
# Copyright (c) 2006 - 2008, Intel Corporation
|
|
# All rights reserved. This program and the accompanying materials
|
|
# are licensed and made available under the terms and conditions of the BSD License
|
|
# which accompanies this distribution. The full text of the license may be found at
|
|
# http://opensource.org/licenses/bsd-license.php
|
|
#
|
|
# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
|
#
|
|
# Module Name:
|
|
#
|
|
# DivError.S
|
|
#
|
|
# Abstract:
|
|
#
|
|
# Set error flag for all division functions
|
|
#
|
|
#------------------------------------------------------------------------------
|
|
|
|
.globl ASM_PFX(InternalMathDivRemU64x32)
|
|
|
|
#------------------------------------------------------------------------------
|
|
# UINT64
|
|
# EFIAPI
|
|
# InternalMathDivRemU64x32 (
|
|
# IN UINT64 Dividend,
|
|
# IN UINT32 Divisor,
|
|
# OUT UINT32 *Remainder
|
|
# );
|
|
#------------------------------------------------------------------------------
|
|
ASM_PFX(InternalMathDivRemU64x32):
|
|
movl 12(%esp), %ecx # ecx <- divisor
|
|
movl 8(%esp), %eax # eax <- dividend[32..63]
|
|
xorl %edx, %edx
|
|
divl %ecx # eax <- quotient[32..63], edx <- remainder
|
|
push %eax
|
|
movl 8(%esp), %eax # eax <- dividend[0..31]
|
|
divl %ecx # eax <- quotient[0..31]
|
|
movl 20(%esp), %ecx # ecx <- Remainder
|
|
jecxz L1 # abandon remainder if Remainder == NULL
|
|
movl %edx, (%ecx)
|
|
L1:
|
|
pop %edx # edx <- quotient[32..63]
|
|
ret
|